Home / 20,954,786.76-31,452,451.34-15,124,982.94

Finding the Fourth Proportional to 20,954,786.76, 31,452,451.34 and 15,124,982.94

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Solution

The fourth proportional to 20,954,786.76, 31,452,451.34 and 15,124,982.94 is: 22,702,105.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954,786.76 : 31,452,451.34 = 15,124,982.94 : x
  2. Step 2: Convert to fraction form
    20,954,786.76/31,452,451.34 = 15,124,982.94/x
  3. Step 3: Cross multiply
    20,954,786.76x = 31,452,451.34 × 15,124,982.94
  4. Step 4: Simplify right side
    20,954,786.76x = 475,717,789,863,055.25
  5. Step 5: Solve for x
    x = 475,717,789,863,055.25/20,954,786.76
  6. Step 6: Final answer
    x = 22,702,105.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.